Importance of thymectomy and prognostic factors in the complex treatment of myasthenia gravis

Thymectomy is indicated in patients with seropositive myasthenia gravis (SPMG) in patients under the age of 50 and in patient with myasthenia gravis (MG) associated with thymoma. 345 patients with MG who underwent an extended thymectomy from April 1990 to December 2010. Patients were separated into...

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Veröffentlicht in:Bratislava Medical Journal 2016, Vol.117 (4), p.195-200
Hauptverfasser: Bak, V, Spalek, P, Rajcok, M, Danihel, L, Schnorrer, M
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Sprache:eng
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Zusammenfassung:Thymectomy is indicated in patients with seropositive myasthenia gravis (SPMG) in patients under the age of 50 and in patient with myasthenia gravis (MG) associated with thymoma. 345 patients with MG who underwent an extended thymectomy from April 1990 to December 2010. Patients were separated into the 4 groups: group with a complete stable remission, pharmacological remission group, group of patients with significant improvement and the group with mild improvement of symptoms. In our study, we observed 345 patients with MG and thymectomy. 137 patients (39.71 %) attained the complete stable remission (CSR) and 92 patients (26.67 %) the pharmacological remission (PR). The significant improvement of MG symptomatology was achieved in 95 patients (27.54 %). The rest of 21 patients from total 345 (6.08 %) have reached only a mild improvement. Patients after thymectomy with CSR were in the clinical stage I and IIA, in accordance to the modified Osserman classification and most benefited from the thymectomy. The extended thymectomy combined with immunotherapy is the preferred treatment with an expected satisfactory long-term remission rate. Despite the recent improvements in MG medical therapy, thymectomy plays an important role in the otherwise complex treatment of the disease. Because of early diagnosis with thymectomy performed without a delay, patients can achieve significantly more often favorable outcomes and even stable remissions (Tab. 4, Fig. 7, Ref. 17).
ISSN:0006-9248
1336-0345
1336-0345
DOI:10.4149/BLL_2016_037